Evolution isn’t the pursuit of some ultimate superpower; it tends towards the optimal. A cheetah lives in balance with the prey population in its environment. Any development that increased speed ...

A major evolutionary theory says most genetic changes don’t really matter, but new evidence suggests that’s not true. Researchers found that helpful mutations happen surprisingly often. The twist is ...

For more than a century, scientists have treated the brain as the undisputed command center of human evolution, with the rest ...

Yes, the evolution of any adapted trait in nature must reach a limit. In principle, this limit is defined by the laws of physics, but, in practice, it may also be defined by the constraints of biology ...